Stains and Dyes

A variety of solutions used to selectively bind to and enhance the visibility of biological structures using color and/or fluorescence; used for histology, protein staining, electrophoresis, bacterial classification, blotting, etc.

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421 – 435 of 7,393 results

421

MilliporeSigma™ Loffler's Methylene Blue Solution

Used as bacteriological counter staining of gonococcal, lactic acid bacteria.

Pricing & Availability
Specifications

Storage Requirements	15° to 25°C

422

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Thermo Scientific Chemicals Phenol Red, sodium salt, pure, water soluble, indicator

CAS: 34487-61-1 Molecular Formula: C19H13NaO5S Molecular Weight (g/mol): 376.358 InChI Key: HKHYOKBQJILTEI-UHFFFAOYSA-M PubChem CID: 23686673 IUPAC Name: sodium;4-[3-(4-hydroxyphenyl)-1,1-dioxo-2,1$l^{6}-benzoxathiol-3-yl]phenolate SMILES: C1=CC=C2C(=C1)C(OS2(=O)=O)(C3=CC=C(C=C3)O)C4=CC=C(C=C4)[O-].[Na+]

Pricing & Availability
Specifications

PubChem CID	23686673
CAS	34487-61-1
Molecular Weight (g/mol)	376.358
SMILES	C1=CC=C2C(=C1)C(OS2(=O)=O)(C3=CC=C(C=C3)O)C4=CC=C(C=C4)[O-].[Na+]
IUPAC Name	sodium;4-[3-(4-hydroxyphenyl)-1,1-dioxo-2,1$l^{6}-benzoxathiol-3-yl]phenolate
InChI Key	HKHYOKBQJILTEI-UHFFFAOYSA-M
Molecular Formula	C19H13NaO5S

423

Thymolphthalein Indicator, 0.05% (w/v) in 90% (v/v) Alcohol, Ricca Chemical

Pricing & Availability
Specifications

Percent Purity	0.05% W/V
CAS	125-20-2
Color	Colorless
Packaging	Natural Poly Bottle
CAS Min %	4.0
Chemical Name or Material	Thymolphthalein Indicator
Grade	Indicator
Concentration	0.05% (w/v)
Solvent or Matrix	90% (v/v) Alcohol
CAS Max %	6.0

424

Fast Blue B Salt, MP Biomedicals™

CAS: 14263-94-6 Molecular Formula: C14H16Cl4N4O2Zn+2 Molecular Weight (g/mol): 479.488 InChI Key: ZZJFLKSMXLBSAQ-UHFFFAOYSA-N Synonym: Azoic Diazo No. 48, Diazo Blue B, o-Dianisidine bis(diazotized) zinc double salt, Naphthanil Diazo Blue B, DBB PubChem CID: 129894309 IUPAC Name: 4-(4-diazonio-3-methoxyphenyl)-2-methoxybenzenediazonium;zinc;tetrahydrochloride SMILES: COC1=C(C=CC(=C1)C2=CC(=C(C=C2)[N+]#N)OC)[N+]#N.Cl.Cl.Cl.Cl.[Zn]

Pricing & Availability
Specifications

PubChem CID	129894309
CAS	14263-94-6
Molecular Weight (g/mol)	479.488
SMILES	COC1=C(C=CC(=C1)C2=CC(=C(C=C2)[N+]#N)OC)[N+]#N.Cl.Cl.Cl.Cl.[Zn]
Synonym	Azoic Diazo No. 48, Diazo Blue B, o-Dianisidine bis(diazotized) zinc double salt, Naphthanil Diazo Blue B, DBB
IUPAC Name	4-(4-diazonio-3-methoxyphenyl)-2-methoxybenzenediazonium;zinc;tetrahydrochloride
InChI Key	ZZJFLKSMXLBSAQ-UHFFFAOYSA-N
Molecular Formula	C14H16Cl4N4O2Zn+2

425

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Thermo Scientific Chemicals Neutral Red, ACS

CAS: 553-24-2 Molecular Formula: C15H17ClN4 Molecular Weight (g/mol): 288.779 MDL Number: MFCD00012651 InChI Key: PGSADBUBUOPOJS-UHFFFAOYSA-N Synonym: Basic Red 5; C.I. 50040 PubChem CID: 11105 ChEBI: CHEBI:86370 IUPAC Name: 8-N,8-N,3-trimethylphenazine-2,8-diamine;hydrochloride SMILES: CC1=CC2=NC3=C(C=C(C=C3)N(C)C)N=C2C=C1N.Cl

Pricing & Availability
Specifications

PubChem CID	11105
CAS	553-24-2
Molecular Weight (g/mol)	288.779
ChEBI	CHEBI:86370
MDL Number	MFCD00012651
SMILES	CC1=CC2=NC3=C(C=C(C=C3)N(C)C)N=C2C=C1N.Cl
Synonym	Basic Red 5; C.I. 50040
IUPAC Name	8-N,8-N,3-trimethylphenazine-2,8-diamine;hydrochloride
InChI Key	PGSADBUBUOPOJS-UHFFFAOYSA-N
Molecular Formula	C15H17ClN4

426

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Thermo Scientific Chemicals Bromothymol Blue sodium salt, ACS reagent

CAS: 34722-90-2 Molecular Formula: C27H27Br2NaO5S Molecular Weight (g/mol): 646.37 MDL Number: MFCD00077263,MFCD00077263,MFCD00077263 InChI Key: NMKFVGALBGZKGW-FKWCIMQXSA-M Synonym: Bromthymol Blue, sodium salt,3', 3''-Dibromothymolsulfonephthalein, sodium salt,BTB PubChem CID: 102183223 IUPAC Name: sodium;2-bromo-4-[(Z)-(3-bromo-2-methyl-4-oxo-5-propan-2-ylcyclohexa-2,5-dien-1-ylidene)-(2-sulfophenyl)methyl]-3-methyl-6-propan-2-ylphenolate SMILES: [Na+].CC(C)C1=CC(\C(C2=CC=CC=C2S([O-])(=O)=O)=C2/C=C(C(C)C)C(=O)C(Br)=C2C)=C(C)C(Br)=C1O

Pricing & Availability
Specifications

PubChem CID	102183223
CAS	34722-90-2
Molecular Weight (g/mol)	646.37
MDL Number	MFCD00077263,MFCD00077263,MFCD00077263
SMILES	[Na+].CC(C)C1=CC(\C(C2=CC=CC=C2S([O-])(=O)=O)=C2/C=C(C(C)C)C(=O)C(Br)=C2C)=C(C)C(Br)=C1O
Synonym	Bromthymol Blue, sodium salt,3', 3''-Dibromothymolsulfonephthalein, sodium salt,BTB
IUPAC Name	sodium;2-bromo-4-[(Z)-(3-bromo-2-methyl-4-oxo-5-propan-2-ylcyclohexa-2,5-dien-1-ylidene)-(2-sulfophenyl)methyl]-3-methyl-6-propan-2-ylphenolate
InChI Key	NMKFVGALBGZKGW-FKWCIMQXSA-M
Molecular Formula	C27H27Br2NaO5S

427

Eosin Y Disodium Salt, MP Biomedicals

CAS: 17372-87-1 Molecular Formula: C20H12Br4Na2O8 Molecular Weight (g/mol): 745.904 MDL Number: MFCD00005040 InChI Key: MASXMTNVNASWNH-UHFFFAOYSA-L Synonym: 2',4',5',7'-Tetrabromofluorescein disodium salt,2', 4', 5',Acid Red 87 PubChem CID: 91886399 IUPAC Name: disodium;2-(2,4,5,7-tetrabromo-3-oxido-6-oxoxanthen-9-yl)benzoate;trihydrate SMILES: C1=CC=C(C(=C1)C2=C3C=C(C(=O)C(=C3OC4=C(C(=C(C=C24)Br)[O-])Br)Br)Br)C(=O)[O-].O.O.O.[Na+].[Na+]

Pricing & Availability
Specifications

PubChem CID	91886399
CAS	17372-87-1
Molecular Weight (g/mol)	745.904
MDL Number	MFCD00005040
SMILES	C1=CC=C(C(=C1)C2=C3C=C(C(=O)C(=C3OC4=C(C(=C(C=C24)Br)[O-])Br)Br)Br)C(=O)[O-].O.O.O.[Na+].[Na+]
Synonym	2',4',5',7'-Tetrabromofluorescein disodium salt,2', 4', 5',Acid Red 87
IUPAC Name	disodium;2-(2,4,5,7-tetrabromo-3-oxido-6-oxoxanthen-9-yl)benzoate;trihydrate
InChI Key	MASXMTNVNASWNH-UHFFFAOYSA-L
Molecular Formula	C20H12Br4Na2O8

428

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Thermo Scientific Chemicals Rhodamine 6G

CAS: 989-38-8 Molecular Formula: C28H31ClN2O3 Molecular Weight (g/mol): 479.017 MDL Number: MFCD00012665 InChI Key: VYXSBFYARXAAKO-UHFFFAOYSA-N Synonym: Basic Red 1; C.I. 45160 PubChem CID: 51358423 IUPAC Name: ethyl 2-[3-(ethylamino)-6-ethylimino-2,7-dimethylxanthen-9-yl]benzoate;hydron;chloride SMILES: [H+].CCNC1=C(C=C2C(=C1)OC3=CC(=NCC)C(=CC3=C2C4=CC=CC=C4C(=O)OCC)C)C.[Cl-]

Pricing & Availability
Specifications

PubChem CID	51358423
CAS	989-38-8
Molecular Weight (g/mol)	479.017
MDL Number	MFCD00012665
SMILES	[H+].CCNC1=C(C=C2C(=C1)OC3=CC(=NCC)C(=CC3=C2C4=CC=CC=C4C(=O)OCC)C)C.[Cl-]
Synonym	Basic Red 1; C.I. 45160
IUPAC Name	ethyl 2-[3-(ethylamino)-6-ethylimino-2,7-dimethylxanthen-9-yl]benzoate;hydron;chloride
InChI Key	VYXSBFYARXAAKO-UHFFFAOYSA-N
Molecular Formula	C28H31ClN2O3

429

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Thermo Scientific Chemicals Eosin Y, pure, certified

CAS: 17372-87-1 Molecular Formula: C20H12Br4Na2O8 Molecular Weight (g/mol): 691.85 MDL Number: MFCD00005040 InChI Key: MASXMTNVNASWNH-UHFFFAOYSA-L Synonym: 2',4',5',7'-Tetrabromofluorescein, disodium salt,Eosin Yellowish,C.I. 45380,2', 4', 5' PubChem CID: 91886399 IUPAC Name: disodium;2-(2,4,5,7-tetrabromo-3-oxido-6-oxoxanthen-9-yl)benzoate;trihydrate SMILES: C1=CC=C(C(=C1)C2=C3C=C(C(=O)C(=C3OC4=C(C(=C(C=C24)Br)[O-])Br)Br)Br)C(=O)[O-].O.O.O.[Na+].[Na+]

Pricing & Availability
Specifications

PubChem CID	91886399
CAS	17372-87-1
Molecular Weight (g/mol)	691.85
MDL Number	MFCD00005040
SMILES	C1=CC=C(C(=C1)C2=C3C=C(C(=O)C(=C3OC4=C(C(=C(C=C24)Br)[O-])Br)Br)Br)C(=O)[O-].O.O.O.[Na+].[Na+]
Synonym	2',4',5',7'-Tetrabromofluorescein, disodium salt,Eosin Yellowish,C.I. 45380,2', 4', 5'
IUPAC Name	disodium;2-(2,4,5,7-tetrabromo-3-oxido-6-oxoxanthen-9-yl)benzoate;trihydrate
InChI Key	MASXMTNVNASWNH-UHFFFAOYSA-L
Molecular Formula	C20H12Br4Na2O8

430

Biebrich Scarlet, MP Biomedicals™

Molecular Formula: C22H14N4Na2O7S2 Molecular Weight (g/mol): 556.47 MDL Number: MFCD00003891 InChI Key: YCKMEQRBEVVZQF-VKZXTWAVSA-L Synonym: Acid Red 66 PubChem CID: 16219040 IUPAC Name: disodium 2-{2-[(1Z)-2-oxo-1,2-dihydronaphthalen-1-ylidene]hydrazin-1-yl}-5-[2-(4-sulfonatophenyl)diazen-1-yl]benzene-1-sulfonate SMILES: [Na+].[Na+].[O-]S(=O)(=O)C1=CC=C(C=C1)N=NC1=CC=C(N\N=C2/C(=O)C=CC3=CC=CC=C23)C(=C1)S([O-])(=O)=O

Pricing & Availability
Specifications

PubChem CID	16219040
Molecular Weight (g/mol)	556.47
MDL Number	MFCD00003891
SMILES	[Na+].[Na+].[O-]S(=O)(=O)C1=CC=C(C=C1)N=NC1=CC=C(N\N=C2/C(=O)C=CC3=CC=CC=C23)C(=C1)S([O-])(=O)=O
Synonym	Acid Red 66
IUPAC Name	disodium 2-{2-[(1Z)-2-oxo-1,2-dihydronaphthalen-1-ylidene]hydrazin-1-yl}-5-[2-(4-sulfonatophenyl)diazen-1-yl]benzene-1-sulfonate
InChI Key	YCKMEQRBEVVZQF-VKZXTWAVSA-L
Molecular Formula	C22H14N4Na2O7S2

431

MilliporeSigma™ Lugol's solution (Diluted Iodine-Potassium Iodide Solution)

For staining of Gram bacteria

Pricing & Availability
Specifications

Packaging	Plastic Bottle

432

Thermo Scientific Chemicals Methyl Green, 0.1% w/v aq. soln.

CAS: 14855-76-6 Molecular Formula: C27H35BrClN3 Molecular Weight (g/mol): 516.952 MDL Number: MFCD00036449 InChI Key: IDAQSADEMXDTKN-UHFFFAOYSA-L Synonym: C.I. 42590; Ethyl Green PubChem CID: 84671 IUPAC Name: [4-[[4-(dimethylamino)phenyl]-(4-dimethylazaniumylidenecyclohexa-2,5-dien-1-ylidene)methyl]phenyl]-ethyl-dimethylazanium;bromide;chloride SMILES: CC[N+](C)(C)C1=CC=C(C=C1)C(=C2C=CC(=[N+](C)C)C=C2)C3=CC=C(C=C3)N(C)C.[Cl-].[Br-]

Pricing & Availability
Specifications

PubChem CID	84671
CAS	14855-76-6
Molecular Weight (g/mol)	516.952
MDL Number	MFCD00036449
SMILES	CC[N+](C)(C)C1=CC=C(C=C1)C(=C2C=CC(=[N+](C)C)C=C2)C3=CC=C(C=C3)N(C)C.[Cl-].[Br-]
Synonym	C.I. 42590; Ethyl Green
IUPAC Name	[4-[[4-(dimethylamino)phenyl]-(4-dimethylazaniumylidenecyclohexa-2,5-dien-1-ylidene)methyl]phenyl]-ethyl-dimethylazanium;bromide;chloride
InChI Key	IDAQSADEMXDTKN-UHFFFAOYSA-L
Molecular Formula	C27H35BrClN3

433

Arsenazo III Indicator, Certified, LabChem™

CAS: 1668-00-4 Molecular Formula: C22H18As2N4O14S2 Molecular Weight (g/mol): 776.363 InChI Key: TVMZRHVOFZTNET-RIRMOVKSSA-N PubChem CID: 9810878 IUPAC Name: (3Z,6E)-3,6-bis[(2-arsonophenyl)hydrazinylidene]-4,5-dioxonaphthalene-2,7-disulfonic acid SMILES: C1=CC=C(C(=C1)NN=C2C(=CC3=C(C2=O)C(=O)C(=NNC4=CC=CC=C4[As](=O)(O)O)C(=C3)S(=O)(=O)O)S(=O)(=O)O)[As](=O)(O)O

Pricing & Availability
Specifications

PubChem CID	9810878
CAS	1668-00-4
Molecular Weight (g/mol)	776.363
SMILES	C1=CC=C(C(=C1)NN=C2C(=CC3=C(C2=O)C(=O)C(=NNC4=CC=CC=C4[As](=O)(O)O)C(=C3)S(=O)(=O)O)S(=O)(=O)O)[As](=O)(O)O
IUPAC Name	(3Z,6E)-3,6-bis[(2-arsonophenyl)hydrazinylidene]-4,5-dioxonaphthalene-2,7-disulfonic acid
InChI Key	TVMZRHVOFZTNET-RIRMOVKSSA-N
Molecular Formula	C22H18As2N4O14S2

434

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Thermo Scientific Chemicals Jenner's Stain

CAS: 62851-42-7 Synonym: Eosin-Methylene Blue

Pricing & Availability
Specifications

CAS	62851-42-7
Synonym	Eosin-Methylene Blue

435

Erythrosin B, spirit soluble

CAS: 15905-32-5 Molecular Formula: C20H8I4O5 Molecular Weight (g/mol): 835.90 MDL Number: MFCD00005044 InChI Key: OALHHIHQOFIMEF-UHFFFAOYSA-N Synonym: C.I. 45430:2; Solvent Red 140 PubChem CID: 3259 SMILES: OC1=C(I)C2=C(C=C1I)C1(OC(=O)C3=C1C=CC=C3)C1=CC(I)=C(O)C(I)=C1O2

Pricing & Availability
Specifications

PubChem CID	3259
CAS	15905-32-5
Molecular Weight (g/mol)	835.90
MDL Number	MFCD00005044
SMILES	OC1=C(I)C2=C(C=C1I)C1(OC(=O)C3=C1C=CC=C3)C1=CC(I)=C(O)C(I)=C1O2
Synonym	C.I. 45430:2; Solvent Red 140
InChI Key	OALHHIHQOFIMEF-UHFFFAOYSA-N
Molecular Formula	C20H8I4O5

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